Abstract: A contact pin for a test socket is provided in the test socket for testing the electrical characteristics of a semiconductor device. The contact pin includes an elastic part elastically deformable in the longitudinal direction of the contact pin; a first contact part which includes a first support part extending from one end of the elastic part and a first contact tip connected to an end of the first support part; and a second contact part which includes a second support part extending from the other end of the elastic part and a second contact tip connected to an end of the second support part, where the elastic part and the second contact part are bent in at least one direction with respect to the first contact part.

Abstract: A display panel, a motherboard, and a mini LED display device. The display panel includes: a panel edge extending along a first direction, and a display region and a test region. The test region is between the display region and the panel edge and includes test pads. At least two test pads are arranged along the first direction, adjacent ones of which are spaced by at least two first electrostatic discharge protection wires extending from one side of the display region adjacent to the test region to the panel edge. Each first electrostatic discharge protection wire includes a first line segment located between two adjacent test pads and a second line segment adjacent to the panel edge. A distance between adjacent first line segments between two adjacent test pads in the first direction is less than a distance between adjacent second line segments in the first direction.

Abstract: A spot welding method includes supplying a welding current having a pulse-shaped waveform to a workpiece by alternately executing a step of maintaining the welding current within a set peak current range and a step of decreasing the welding current from the peak current range toward a bottom current and then increasing the welding current toward the peak current range when an effective value of the welding current reaches a set target range for a plurality of cycles. The spatter detection method includes measuring a pulse width IW(1), IW(2), . . . in each cycle of the pulse-shaped waveform and detecting the occurrence of spatter when a pulse width difference D(M)=IW(M)?IW(M?1) between a pulse width IW(M) in a target cycle (M-th cycle) and a pulse width IW(M?1) in a cycle immediately before the target cycle exceeds a width threshold value Dth.

Abstract: The present disclosure relates to electromagnetic marker devices for locating hidden or buried objects. One embodiment includes an antenna having a plurality of conductive windings enclosed in a housing made of a low dielectric constant material and an electronic circuit including a circuit board having circuit elements disposed thereon and electrically coupled to the conductive windings through a connector. The circuit elements receive an input signal having a first frequency from an above-ground transmitter, convert the input signal to a power supply to power up the electronic circuit, generate, in response to the input signal, an output signal having a second frequency different from the first frequency, and provide the output signal, via the antenna element, to an above-ground receiver.

Abstract: A semiconductor inspection device 1 having a first measurement mode and a second measurement mode includes: an electron optical system configured to irradiate a sample with an electron beam; an optical system configured to irradiate the sample with light; an electron detector configured to detect a signal electron; a photodetector 29 configured to detect signal light; a control unit 11 configured to control the electron optical system and the optical system such that an electron beam and light are emitted under a first irradiation condition in the first measurement mode, and to control the electron optical system and the optical system such that an electron beam and light are emitted under a second irradiation condition in the second measurement mode; and a computer configured to process a detection signal from the electron detector or the photodetector.

Abstract: A sensor assembly includes an electrode extending along a longitudinal axis and a tubular section extending along the longitudinal axis and at least partially surrounding the electrode such that the tubular section is radially spaced from the electrode, the tubular section including a first layer made of an electrically insulating material and having a first length, a second layer made of an electrically conductive material disposed on an inner surface of the first layer and having a second length, and a third layer made of an of electrically conductive material disposed on an outer surface of the first layer and having a third length. The sensor assembly also includes a mass of dielectric material at least partially enclosing the electrode and the tubular section. The mass of dielectric insulating material fills through openings in the tubular section, and the second length and the third length are coextensive.

Abstract: Disclosed is a method for detecting a short-circuit in an H-bridge electronic circuit, including: activating a current source on a first test branch; taking a first potential measurement of one of the output terminals; activating, if the first potential measurement is substantially different from the potential of the power supply terminal to which the first test branch is connected, a current source on a second, diametrically opposite test branch; taking a second potential measurement of each output terminal; and signalling the detection of a localized short-circuit in the output terminal having the potential resulting from the second potential measurement that is closest to the potential resulting from the first potential measurement.

Abstract: Disclosed are a magnetic resonance temperature correction method based on k-space energy spectrum analysis and a system. The method includes: filling a k-space data matrix of magnetic resonance with zeros row by row, and performing an inverse Fourier transform on the k-space data matrix after filling each row of zeros, to obtain a reconstructed image; drawing a pixel intensity variation curve according to a pixel intensity of each pixel in all reconstructed images and a number of rows filled with zeros, and obtaining echo error according to the pixel intensity variation curve, calculation an actual echo time, and calculating a corresponding temperature variation value based on the TE of each pixel.

Abstract: The invention pertains to a shunt resistor for a current measurement apparatus of a busbar, the resistor having a planar resistor body and two connection terminals for measuring voltage across the planar resistor body, wherein each of the two connection terminals is connected to one of two conductive traces provided on opposite sides of the resistor body, and wherein each of the conductive traces includes a measurement portion and a connection portion for connecting the measurement portion to one of the connection terminals. The invention is also directed at a current measurement apparatus including said shunt resistor and a current path provided in parallel to the shunt resistor. The invention is furthermore directed at a busbar with a corresponding current measurement apparatus, wherein the shunt resistor and the current path are provided for connecting the busbar to an electronic component.

Abstract: A fish tape system includes a fish tape and a case having a storage compartment that stores the fish tape for deployment from the case. The fish tape has a length extending from a first end to a second end. The length includes a luminescent material that emits light after being energized by exposure to a light source. At least a portion of the case is transparent to allow the luminescent material 22 to be energized by light passing through the transparent portion and into the storage compartment.

Abstract: Provided is a metal detector capable of quickly and accurately ascertaining a noise generating situation. A metal detector generates a magnetic field in an inspection region and detects a change in the magnetic field in the inspection region to detect a foreign substance in an inspection object passing through the inspection region. The metal detector measures the change in the magnetic field of the inspection region while changing an inspection frequency, performs frequency analysis of the measurement result, and displays an obtained frequency distribution diagram on the display unit as a noise diagnosis result. In the frequency distribution diagram, target foreign substance reference lines are displayed.

Abstract: A high voltage measurement port and a circuit contact wire assembly for vehicle high-voltage power decommissioning. The high voltage measurement port includes four externally accessible pins for obtaining an electrical characteristic measurement of a connected circuit. For redundancy, the assembly includes a resistor between a first measurement port pin and a first positive DC busbar at a first location, a resistor between a second pin and the first DC busbar at a second location different from the first location, a resistor between a third pin and a second negative DC busbar at a first location, and a resistor between a fourth pin and the second DC busbar at a second location different from the first location. Via the high voltage measurement port, a multi-meter can verify each resistance connection between the positive pins and then again between negative pins before a differential voltage measurement is made between positive and negative.

Abstract: The invention relates to a method of determining a crack at an edge of a metallic material, the edge having a curvature with a radius. The method including: feeding and controlling a current to a transmitter coil for generating a magnetic field in the metallic material, detecting the magnetic field by means of a receiver coil, which detected magnetic field thereby generates a signal) in the receiver coil, determining first, second and third signal values of the signal at a first time, a second time and a third time, respectively, determining a possible presence of a crack and its crack depth based on the first, second and third signal values by means of determining a characteristic relation between the signal values.

Abstract: A method and system for determining a mass of an absorbed gas and a mass of a pore gas in a sample using NMR spectroscopy is provided. The method includes acquiring a baseline NMR spectrum of a pressure cell containing the sample, saturating the sample with a gas, acquiring a saturated NMR spectrum and determining a differential NMR spectrum of the sample by subtracting the baseline NMR spectrum from the saturated NMR spectrum. The method also includes separating the differential NMR spectrum into an absorbed gas NMR spectrum to determine an absorbed gas NMR signal and a pore gas NMR spectrum to determine a pore gas NMR signal by performing a spectral deconvolution. The method further includes acquiring a normalization NMR spectrum of the pressure cell containing a gas to determine a gas calibration NMR signal and determining the mass of the absorbed gas and pore gas.

Abstract: A measuring probe for measuring in ground a parameter, the probe having an elongate body with a tip as a leading end and a head as a trailing end, the elongate body having a first and a second member which each extend in a longitudinal direction of the elongate body, the second member provides resistance against bending of the first member when the tip is advanced into the ground by hammering on the head.

Abstract: An apparatus and a method for measuring an insulation resistance of a vehicle provided with a high voltage system including a battery and a plurality of high voltage electrical components operated by receiving power stored in the battery, includes a controller configured to determine a stray capacitance based on the high voltage electrical components electrically connected to the battery and to determine a measurement period for measuring the insulation resistance of the vehicle based on the determined stray capacitance.

Abstract: A smart cord reel cable including at least one sensor for measuring cord or cord reel usage, a memory for receiving sensor input to create usage records, and a processor for analyzing the usage records to provide information for maintenance status indication and/or usage analytics.

Abstract: An open-loop electrical current transducer for measuring an electrical current flowing in a primary conductor, includes a magnetic circuit core with an air-gap, and a magnetic field sensing device positioned at least partially in the air-gap, the magnetic field sensing device including a circuit board, a first magnetic field detector in the form of an ASIC mounted on the circuit board, and a second magnetic field detector in the form of a conductive pick-up coil formed on two or more layers in or on the circuit board. The outputs of the first and second magnetic field detectors are connected to a signal processing circuit generating an output signal representative of the electrical current, the output of the ASIC representing a low frequency (LF) channel and the output of the pick-up coil representing a high frequency (HF) channel.

Abstract: Fault detection during a power swing in a power transmission system is described. Voltage and current measurements are obtained for each phase at a terminal of the power transmission system. Based on measurements obtained, a value of change in an impedance angle for each phase-to-ground loop and each phase-to-phase loop for each sample of the voltage and current values is calculated, where the value of change in the impedance angle is a difference between impedance angles of two samples separated by a predetermined interval. The average values for change in impedance angle based on a predetermined number of values of change in the impedance angle for each phase-to-ground loop and each phase-to-phase loop is calculated. The average values are compared with a threshold range of change in impedance angle. Based on the comparison, a fault in one or more of the phase-to-ground loops or phase-to-phase loops is detected and classified.

Abstract: A power module device, comprising a main switch and a detection unit. The main switch is electrically connected between a first detection node and a second detection node. The first detection node and the second detection node are electrically connected between a plurality of power supply nodes, and are substantially two ends of the main switch. When the main switch is turned on, the main switch is configured to transmit a current flowing through the plurality of power supply nodes. The detection unit is electrically connected to the first detection node and the second detection node, and configured to detect a voltage across the two ends of the main switch to generate a detection voltage.